var Wallet = require('ethereumjs-wallet');
var EthUtil = require('ethereumjs-util');

// Get a wallet instance from a private key
const privateKeyBuffer = EthUtil.toBuffer('61ce8b95ca5fd6f55cd97ac60817777bdf64f1670e903758ce53efc32c3dffeb');
const wallet = Wallet.fromPrivateKey(privateKeyBuffer);

// Get a public key
const publicKey = wallet.getPublicKeyString();
console.log(publicKey);
